INVESTIGATION OF VIBRATORY METHOD OF FINISHING CONCRETE PAVEMENT IN ILLINOIS

THIS INVESTIGATION WAS CONDUCTED TO STUDY THE PRACTICABILITY OF THE VIBRATORY METHOD OF PLACING CONCRETE ON A REGULAR PAVING CONTRACT. MIXTURES OF STANDARD PROPORTIONS PLACED BY CONVENTIONAL METHODS WERE COMPARED WITH TWO TYPES OF MIXTURES PLACED BY VIBRATION, IN WHICH THE PROPORTION OF FINE TO COARSE AGGREGATE WAS ADJUSTED TO GIVE THE BEST RESULTS. BOTH GRAVEL AND CRUSHED STONE COARSE AGGREGATES WERE USED. IN ONE TYPE MIXTURE, DESIGNED FOR STANDARD YIELD, A REDUCTION IN MIXING WATER OF ABOUT ONE- HALF GALLON PER BAG OF CEMENT AND A CORRESPONDING INCREASE IN STRENGTH WERE OBTAINED. IN THE OTHER, IN WHICH THE STANDARD WATER-CEMENT RATIO WAS MAINTAINED, A SAVING IN CEMENT OF ABOUT 10 PER CENT WAS OBTAINED WITHOUT REDUCTION IN STRENGTH. THE PROGRESS OF THE WORK WAS AS SATISFACTORY AS WITH THE CONVENTIONAL METHODS AND THE SURFACE OF THE PAVEMENT SHOWED NO DEFECTS AFTER ONE YEAR. THE RELATIVE AMOUNTS OF HONEYCOMB IN THE SLABS SHOWED THAT THE VIBRATORY METHOD IS FAR SUPERIOR TO THE ILLINOIS STANDARD METHOD IN CONSOLIDATING THE CONCRETE. CONCRETE OF ONE INCH SLUMP, WHICH WAS ABOUT AS DRY AS COULD BE DISCHARGED AND SPREAD BY THE MIXER BUCKET, WAS CONSOLIDATED VERY SATISFACTORILY AROUND TRANSVERSE METAL JOINTS, WHEN INSTALLATION BARS TO PROTECT THE COPPER SEAL OR BITUMINOUS CAP WERE USED. /AUTHOR/

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/hrbproceedings/17/17Pt1-024.pdf
• Supplemental Notes:
  • Vol 17, ParT I, PP 304 - 327, 8 FIG, TAB, PHOT; part of Report of Department of Materials and Construction Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Glover, V L
  • Gage, R B
  • Levison, A A
  • Scholer, C H
• Discussers:
  • Myers, B
• Publication Date: 1938

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Seventeenth Annual Meeting of the Highway Research Board Held at Washington, D.C. November 30, December 1, 2, 3, 1937. Part I
• Serial:
  • Highway Research Board Proceedings
  • Volume: 17
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Admixtures; Aggregates; Concrete pavements; Location; Strength of materials; Vibratory equipment; Water cement ratio
• Old TRIS Terms: Concrete vibrators; Placement
• Subject Areas: Construction; Geotechnology; Highways;

Filing Info

• Accession Number: 00215315
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Aug 23 1971 12:00AM